Apparatus for electrodeposition of precious ores



June 30, 1925.

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w. R. DODGE APPARATUS FOR ELECTRODEPOSITION OF PRECIOUS CRES Fil'ed Nov. 26, 1923 2 sheets-sheet 2 12 NVENTDR,

Patented June 30, 192,5.

UNITED/:STATES wriv'rn'nor mrFUsjponen,v or `-islnvrivrVINS, ONTARIO, CANADA.

APPARATUS FOR ELEC'IRODEIEOSI'1512012'` OF PRECIOS DRES. i

1' *Application led November 26, 1923. Serial No. 677,037.

To all whomz't may conce/m."

Be it known thatV I, WINTHROP Rnr'us DODGE, a citizen of the UnitedStates of America,.and resident ofthe town of Timmins, in the Province `of Ontario, in the Dominion ofy Canada, have invented new and 'useful Improvements inApparatus for Electrodeposition` .of Precious Ores, of which the following is a specification.

The invention relates to ,apparatus for electrodeposition of precious .ores as described in the present specification' and shown in `the accompanying: drawings that form part of the same.f f n.

The invention relates tofan apparatus by means of which 4precious ores, chiefly gold and silver, are deposited ydirectly from a solution of concentrates, either with or without filtration, and 'has for its object provi-V sions whereby the extraction of such7precious ores is both facilitated and expedited.

The invention-"consists essentially of .a vessel provided with an inlet for admission of a cyanide solution of concentrates andan outlet for the escape of the residuethereof, a series of electrodes composed of alternate anodes and. `cathodes interposing the inlet andv outlet and connected to 1a source4 of electricity so as to.depositthe precious ores of the solution by passage of a current therethrough. The invention also provides vfor rotating the cathodes to constantly; agitate thesolution during treatment and Vfor the removal of such cathodes as al unit to effect stripping of the deposits therefrom byv acid or alkali as customary in the art.

Referring to the drawings, Figure 1.is av vertical sectional view of the invention;

Figure 2 is a top plan view thereof. v

VFigure 3 is a fragmentarydetail of the spider.V

'Figure 4 isa partial sectional view taken on the line 2 2 of Figure 1 illustrating the electrodes. u l v Like numerals of reference indicate corresponding parts throughout?y the iguresin the drawings.

In the drawings, 1 designates a circular vessel of suitable capacity constructed of a non-conductive material and being supportedupon a substantial framer2 of convenient shape and form. y, y

3 is a lateral ingress comprising a pipe extending from a cyaniding receptacle, not shown in the drawings as it does not constitute a feature of the present invention, to

the vessel 1 and aixed thereto by aflange 4, :by which means a cyanide solution of concentrates is conveyed tothe vessel for treatment. v

.5 is an egress comprising a, pipe similarly affixed to the vessel, at its bottom, and" extending back to the cyaniding receptacle or to a waste, thereby conducting the residue of the solution from the vessel. Y 1

' 6 are a seriesof anodes .consisting of concentric cylinders, constructed of -soft steel,

and resting vupon the vessel-bottom, said cylindersY gradually decreasing in heigh towards their common centre. 1

7 are` vertical rods disposed atintervals-l 'nsl frameVY 2].by bolts or other convenient lfas-` i tening means. ,f

112 is a vertical shaft journalledin said bearings and extending through the, vessel 1 toits upper end-,said shaft being provided with' avworm gear 13 meshing with a worm 14, whichv inturn is connected to a source ofl power inorder that` the shaft may be driven bysuchgearing. v

15 is a stationary tube encasing the shaftv 12 and rigidly ksecured to the vesselbottom by a flange 16, the upper end of said tube terminating shortof the shaftrend.

17 .is a spider mounted upon vthe upper endof theshaft 12,comprisin0f a plurality` of radial arms 18 equidistant rom one another, of a non-conducting material f and rigidly secured, by plates 19, and having anv upper flange 2O andl a,.lower `flange 21.V ,secured by boltsv 22. v, .4 23 is a thrust ball kbearing interposing the upperHend-of` the tube A15 and the lower spider flange 21 forthe` purpose of diminishing Vfriction of such contacting parts-.`

424 is asubstantialbo1t `transversely arrangedxin t he upper spiderhflange 2O and passing through a slot 25 in the shaft .12

thereby-.forming a key to prevent independentlrotation yof, the` spider '17 .and yet allowing its removal ufromith'e lvesselwithout rei moving of the bolt. 

